In Bronfenbrenner's ecological systems theory, which of the following does NOT belong to the five defined systems?

Bronfenbrenner's ecological systems theory outlines five distinct systems that influence individual development: the microsystem, mesosystem, exosystem, macrosystem, and chronosystem. Each of these systems represents different layers of influence on a child's environment and development.

The microsystem is the immediate environment where a child interacts, such as family, school, and peers, emphasizing the direct relationships and experiences that shape development. The macrosystem encompasses the broader cultural and societal influences, including cultural values, laws, and customs. The chronosystem adds a temporal dimension, considering how changes over time—such as life transitions and historical events—affect environments and individuals.

The term "intersystem" does not exist in this framework. It is not recognized as a part of Bronfenbrenner's ecological systems theory, hence it does not belong in the list of defined systems. Understanding this distinction is essential for grasping how each defined system interacts to influence a child's development holistically.